## Approximation

#### Approximation

Direction: What approximate value should come in place of the question mark(?) in the following question ? (Note that you are not expected to calculate the exact value).

1. 125.009 + 69.999 + 104.989 = ?
1. 420
2. 300
3. 285
4. 415

1. 125.009 + 69.999 + 104.989 = ?
Lets assume, each value is approximated to nearest whole number
⇒ ? ≈ 125 + 70 + 105

##### Correct Option: B

125.009 + 69.999 + 104.989 = ?
Lets assume, each value is approximated to nearest whole number
⇒ ? ≈ 125 + 70 + 105
⇒ ? ≈ 300

1. 16.003 x 27.998 - 209.010 = ?
1. 150
2. 200
3. 75
4. 240

1. ? = 16.003 x 27.998 - 209.010
? ≈ 16 x 28 - 210 = 448 - 210

##### Correct Option: D

? = 16.003 x 27.998 - 209.010
? ≈ 16 x 28 - 210 = 448 - 210
? = 238 ≈ 240

1. 840.003 ÷ 23.999 = ?
1. 47
2. 8
3. 35
4. 18

1. ? = 840.003 ÷ 23.999
Here one number is increased and other is decreased to their nearest whole number.

##### Correct Option: C

? = 840.003 ÷ 23.999
Here one number is increased and other is decreased to their nearest whole number
= 840 ÷ 24 = 35

1. 6885.009 - 419.999 - 94.989 = ?
1. 6650
2. 6830
3. 6370
4. 6200

1. ? = 6885.009 - 419.999 - 94.989
= 6885 - 420 - 95

##### Correct Option: C

? = 6885.009 - 419.999 - 94.989
= 6885 - 420 - 95 ≈ 6370

1. 503 x 201= ?
1. 101100
2. 1000000
3. 110000
4. 100003

1. 530 x 201 = 101103

##### Correct Option: A

530 x 201 = 101103 ≈ 101100